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Re: railing design

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Since the verticals are so close to each other, the kind of flat stock top
rail plays an important role in the continuable verticals.

I don't recall any deflection requirement on the rail deflections.  I would
recommend a limit of not exceeding 1/120 for the rail height.  Which is
about 3/8" for a 3'-6" high rail.


At 11:38 AM 2/15/99 -0600, you wrote:
>i have a handrail that has 1/2" X 1/2" verticals at 4" o.c. with a
>nominal flat stock top horizontal.  in applying the code required 200 #
>horizontal load what effective width is allowed.  another words how many
>verticals can contribute?
>another question is, what is the codefied deflection criteria?